US 11,693,296 B2
Optical element driving mechanism and optical system
Chao-Hsi Wang, Taoyuan (TW); Chao-Chang Hu, Taoyuan (TW); Chih-Wei Weng, Taoyuan (TW); and He-Ling Chang, Taoyuan (TW)
Assigned to TDK TAIWAN CORP., Taoyuan (TW)
Filed by TDK TAIWAN CORP., Taoyuan (TW)
Filed on Jun. 11, 2020, as Appl. No. 16/898,786.
Claims priority of provisional application 62/879,190, filed on Jul. 26, 2019.
Claims priority of application No. 202020150558.9 (CN), filed on Feb. 3, 2020.
Prior Publication US 2021/0026097 A1, Jan. 28, 2021
Int. Cl. G02B 27/64 (2006.01); G02B 7/08 (2021.01); G03B 5/00 (2021.01); H02K 33/18 (2006.01); G03B 13/36 (2021.01); G02B 7/09 (2021.01); G02B 7/04 (2021.01); H02K 41/035 (2006.01); G01P 15/02 (2013.01); G03B 5/02 (2021.01); H04N 23/50 (2023.01); H04N 23/51 (2023.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); H04N 23/57 (2023.01)
CPC G03B 13/36 (2013.01) [G01P 15/02 (2013.01); G02B 7/04 (2013.01); G02B 7/08 (2013.01); G02B 7/09 (2013.01); G02B 27/646 (2013.01); G03B 5/00 (2013.01); G03B 5/02 (2013.01); H02K 33/18 (2013.01); H02K 41/0354 (2013.01); H02K 41/0356 (2013.01); H04N 23/50 (2023.01); H04N 23/51 (2023.01); H04N 23/54 (2023.01); H04N 23/55 (2023.01); H04N 23/57 (2023.01); G03B 2205/0007 (2013.01); G03B 2205/0069 (2013.01); G03B 2205/0076 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optical element driving mechanism, comprising:
a fixed part;
a movable part movably disposed on the fixed part and connected to an optical element;
a driving assembly, wherein at least a portion of the driving assembly is disposed on the fixed part; and
a positioning assembly disposed on the fixed part or the movable part to limit the movable part at an extreme position relative to the fixed part;
wherein the driving assembly comprises a magnetically permeable element and a coil wound around the magnetically permeable element in a first direction;
wherein the driving assembly drives the movable part to move along the first direction;
wherein when viewed along the first direction, the coil is polygonal, comprising a long side that is parallel with a second direction and a short side that is parallel with a third direction;
wherein the fixed part further comprises a body and a cap, and a portion of the optical element is revealed between the body and the cap when viewed along the second direction.